Empirical risk minimization and problems of constructing linear classifiers

Abstract

Problems of construction of linear classifiers for classifying many sets are considered. In the case of linearly separable sets, problem statements are given that generalize already well-known formulations. For linearly inseparable sets, a natural criterion for choosing a classifier is empirical risk minimization. A mixed integer formulation of the empirical risk minimization problem and possible solutions of its continuous relaxation are considered. The proposed continuous relaxation problem is compared with problems solved with the help of other approaches to the construction of linear classifiers. Features of nonsmooth optimization methods used to solve the formulated problems are described.